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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/intermediate_language.h" | 5 #include "vm/intermediate_language.h" |
| 6 | 6 |
| 7 #include "vm/bit_vector.h" | 7 #include "vm/bit_vector.h" |
| 8 #include "vm/bootstrap.h" | 8 #include "vm/bootstrap.h" |
| 9 #include "vm/compiler.h" | 9 #include "vm/compiler.h" |
| 10 #include "vm/constant_propagator.h" | 10 #include "vm/constant_propagator.h" |
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| 269 ASSERT(IsDenseSwitch()); | 269 ASSERT(IsDenseSwitch()); |
| 270 intptr_t mask = 0; | 270 intptr_t mask = 0; |
| 271 for (intptr_t i = 0; i < cids_.length(); ++i) { | 271 for (intptr_t i = 0; i < cids_.length(); ++i) { |
| 272 mask |= static_cast<intptr_t>(1) << (cids_[i] - cids_[0]); | 272 mask |= static_cast<intptr_t>(1) << (cids_[i] - cids_[0]); |
| 273 } | 273 } |
| 274 return mask; | 274 return mask; |
| 275 } | 275 } |
| 276 | 276 |
| 277 | 277 |
| 278 bool CheckClassInstr::IsDenseMask(intptr_t mask) { | 278 bool CheckClassInstr::IsDenseMask(intptr_t mask) { |
| 279 // Returns true if the mask is a continuos sequence of ones in its binary | 279 // Returns true if the mask is a continuous sequence of ones in its binary |
| 280 // representation (i.e. no holes) | 280 // representation (i.e. no holes) |
| 281 return mask == -1 || Utils::IsPowerOfTwo(mask + 1); | 281 return mask == -1 || Utils::IsPowerOfTwo(mask + 1); |
| 282 } | 282 } |
| 283 | 283 |
| 284 | 284 |
| 285 bool LoadFieldInstr::IsUnboxedLoad() const { | 285 bool LoadFieldInstr::IsUnboxedLoad() const { |
| 286 return FLAG_unbox_numeric_fields && (field() != NULL) && | 286 return FLAG_unbox_numeric_fields && (field() != NULL) && |
| 287 FlowGraphCompiler::IsUnboxedField(*field()); | 287 FlowGraphCompiler::IsUnboxedField(*field()); |
| 288 } | 288 } |
| 289 | 289 |
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| 2307 } | 2307 } |
| 2308 | 2308 |
| 2309 | 2309 |
| 2310 Definition* UnboxedIntConverterInstr::Canonicalize(FlowGraph* flow_graph) { | 2310 Definition* UnboxedIntConverterInstr::Canonicalize(FlowGraph* flow_graph) { |
| 2311 if (!HasUses()) return NULL; | 2311 if (!HasUses()) return NULL; |
| 2312 | 2312 |
| 2313 UnboxedIntConverterInstr* box_defn = | 2313 UnboxedIntConverterInstr* box_defn = |
| 2314 value()->definition()->AsUnboxedIntConverter(); | 2314 value()->definition()->AsUnboxedIntConverter(); |
| 2315 if ((box_defn != NULL) && (box_defn->representation() == from())) { | 2315 if ((box_defn != NULL) && (box_defn->representation() == from())) { |
| 2316 if (box_defn->from() == to()) { | 2316 if (box_defn->from() == to()) { |
| 2317 // Do not erase truncating convertions from 64-bit value to 32-bit values | 2317 // Do not erase truncating conversions from 64-bit value to 32-bit values |
| 2318 // because such convertions erase upper 32 bits. | 2318 // because such conversions erase upper 32 bits. |
| 2319 if ((box_defn->from() == kUnboxedMint) && box_defn->is_truncating()) { | 2319 if ((box_defn->from() == kUnboxedMint) && box_defn->is_truncating()) { |
| 2320 return this; | 2320 return this; |
| 2321 } | 2321 } |
| 2322 return box_defn->value()->definition(); | 2322 return box_defn->value()->definition(); |
| 2323 } | 2323 } |
| 2324 | 2324 |
| 2325 UnboxedIntConverterInstr* converter = new UnboxedIntConverterInstr( | 2325 UnboxedIntConverterInstr* converter = new UnboxedIntConverterInstr( |
| 2326 box_defn->from(), representation(), box_defn->value()->CopyWithType(), | 2326 box_defn->from(), representation(), box_defn->value()->CopyWithType(), |
| 2327 (to() == kUnboxedInt32) ? GetDeoptId() : Thread::kNoDeoptId); | 2327 (to() == kUnboxedInt32) ? GetDeoptId() : Thread::kNoDeoptId); |
| 2328 if ((representation() == kUnboxedInt32) && is_truncating()) { | 2328 if ((representation() == kUnboxedInt32) && is_truncating()) { |
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| 4183 "native function '%s' (%" Pd " arguments) cannot be found", | 4183 "native function '%s' (%" Pd " arguments) cannot be found", |
| 4184 native_name().ToCString(), function().NumParameters()); | 4184 native_name().ToCString(), function().NumParameters()); |
| 4185 } | 4185 } |
| 4186 set_is_auto_scope(auto_setup_scope); | 4186 set_is_auto_scope(auto_setup_scope); |
| 4187 set_native_c_function(native_function); | 4187 set_native_c_function(native_function); |
| 4188 } | 4188 } |
| 4189 | 4189 |
| 4190 #undef __ | 4190 #undef __ |
| 4191 | 4191 |
| 4192 } // namespace dart | 4192 } // namespace dart |
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